Improved divided axi



D. B. HUNT.

` Car Axie.

Patented May 4, 1869.

p To all whom it concern: V v

in all, for lordinary axles.

marsica anatema.

.DAVIDBROWN HUNT, or SANy rnnNoiseg CALIFORNIA.

\ Leners Patent No. 89,767, ma May 4, 1869.

' p `nunnc'ivrzn nrvmnb ron nauwer-cans.

Beit known that I, Dxvm BROWN iHUNr, of the city and county `of San Francisco, State of California,

Q `have invented a certain new Improvement in the Manner of Constructing (lar-AxlexOouplings; and 'I do hereby declare `that the following is a full, clear, and -exact descriptionV of thefsame, Vreference being had to the accompanying drawings, making a part of this specification, in which-- Figure 1 shows my improvement, in section, as applied on theaxle;

Figure 2 shows'a longitudinal section of myl coupling, separately;`and Y Figure 3 shows the axle separately.

The device is intended to allow for independent action of each wheel attached to the axlesoi' railroadcars, Ste., as is found desirable `when these vehicles are rounding curves in the track.

whilstvit shall `firmly bind"the parts of the axle to gether, may'not interfere with' their independent revolution,

This, as a principle, is oldand well known, and has doubtless been in use, but owingY to the complicated 1 and expensive manner inV which lthis principle hasl heretofore been carried out, its adoption has not beycome general.

It has been thedesign of the inventor to simplify I 7 and cheapen the construction of these conplings,`with out prejudice to their eii'ectiveness, and the subjoined description of my improved coupling will enable others skilled in the art to make and use the saine.

I take an ordinary car-axle, A A', and cut it in two pieces,l at the line o 0, and for a distance correspondin'g to the entire length of my conpling, or sleeve B, plus the width o'f the collar O, say about twenty inches Iturn ofi' my axle, A, being careful to take away vas little metal as possible, so as not to unnecessarily j "l The Schedulereferred` to in these Letters Patent and making part o! the same.

rweaken the same. p

I also turn oli' the other part of the axle A', for, say,-

1eight inches, corresponding to the distance the coup ling' will cover'. The diameter of this part must correspond vwith the outside diameter ofthe collar O. l

The coupling, or` sleeve B is simply a cylinder of wrought-iron, say about eighteen inches long, bored Vtolit the two diameters of the separated partsof the O is a collar, say three-eighths of fan inch thick, and two inches wide, which is iirmly pinned or riveted on the end of the axle A, after the sleeve or coupling B has been drawn on.

D is a tapering pin, which is driven tightly through the sleeve B and axle A.

-In applying the coupling, I firstV slide it over the end of the axle Aas `far up as to admit the placing of the collar 0,'*which collar I then rivet or pin tothe axle; the coupling is then drawn forward, and the other end ofthe axle A is introduced, which end is butted up against the continuing 'part of the axle A; the pin l -D is then-driven tightly into the sleeve and axle, and thus the separated parts of the axle are again solidly boundtogether.

. Iwish it distinctly understood that I make no claim to originality in dividing the axle, and afterwards to the other part of the axle as a mans of keeping AVID BROWN HUNT.v

Witnesses: Y GEORGE S'rEAD, J oHN L. OoNsrABLE.

the divided axle together. 

